Bosses

Uprising

• Mantis Queen
• Gummer Valentearl
• Obsidiath

Retaliation

• Alien Overlord
• Scorpitron
• Medusa
• Kraken
• Azazel
• Octinfantry

Revelations

• Chrysalis
• Cerebus
• Leviathan
• The Four Horsemen
• The Great Deceiver (The Antichrist)